clutch release point
As long as the pedal has a little bit of play at the top (before you begin pushing it to the floor), that means there's no load on the hydraulics, which means the clutch is fully engaged.
Another way to tell if the clutch is fully engaged is to get on the expressway, throw it in 6th and floor it. If the motor bogs a bit and the car slowly accelerates you're good. If the RPM's crawl up and the car doesn't accelerate, than youe clutch is slipping and you've got some problems to troubleshoot.


